Results 121 to 130 of about 10,693 (226)

Supramolecular Chalcogen‐Bonded Shape Memory Actuators

open access: yesAngewandte Chemie
Abstract Supramolecular liquid crystal elastomers (LCEs) incorporating chalcogen bonds (ChBs) have been synthesized and investigated for shape memory and actuation properties. LCEs featuring strong Se⋯N ChBs (−40 to −43 kJ mol −1 ) exhibit both shape memory effects (SME) and
Hongshuang Guo   +5 more
openaire   +2 more sources

Plasmon–Exciton–Driven Modulation of the Electronic and Optical Properties of MoS2 via Cayley Tree Fractal Nanostructures

open access: yesJournal of Raman Spectroscopy, EarlyView.
This work investigates the change in optical and electronic properties of monolayer MoS2 through the coupling of its excitons and a plasmonic fractal structure. The formation of the heterostructure shows significant enhancement on the edge of the fractal pattern relative to off, owing to the enhanced electric field at the edge of the branches.
Zeiad Saad   +3 more
wiley   +1 more source

Resonant X‐Ray Diffraction of Conjugated Polymers at the Selenium K‐Edge

open access: yesMacromolecular Rapid Communications, EarlyView.
Analogous to isomorphous replacement used in X‐ray crystallography studies of proteins, substituting sulfur for selenium in conjugated polymers enables resonant diffraction studies of molecular packing down to the length scale of π‐‐π stacking. Two selenium‐containing polymers are studied with a comparison made between sulfur K‐edge and selenium K‐edge
Guillaume Freychet   +6 more
wiley   +1 more source

Electrical properties of Bi-implanted amorphous chalcogenide films

open access: yes, 2014
The impact of Bi implantation on the conductivity and the thermopower of amorphous chalcogenide films is investigated. Incorporation of Bi in Ge-Sb-Te and GeTe results in enhanced conductivity.
Colaux, Julien L.   +11 more
core  

Novel Sulfur‐Rich Polymers from Inverse Vulcanization as Functional Building Blocks for Photonics

open access: yesMacromolecular Rapid Communications, EarlyView.
Isopropenyl aromatic comonomers, in particular novel 2,7‐diisopropenylfluorene and 2,8‐diisopropenyldibenzothiophene, synthesized by sustainable, facile, single‐step SMCCR from available brominated substrates are exploited in the Inverse Vulcanization process to obtain functional Sulfur‐rich macromolecular materials.
Raimondo Insogna   +7 more
wiley   +1 more source

chalcogen bond

open access: yes
Citation: 'chalcogen bond' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.09631 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial
openaire   +1 more source

Photocatalysis with Chalcogen Bonds

open access: yes
In a recent prebiotically plausible synthesis of 2'-deoxyribose-2-thiouridine, UV irradiation and aqueous bisulfide were employed to conduct the photoreduction of 2',2-thioanhydrouridine, resulting in the formation of the non-canonical thiopyrimidine nucleoside.
Mikołaj Jan Janicki, Rafał Szabla
openaire   +1 more source

The scale matters: A review on stimuli‐responsive microrobots categorized by scale for biomedical applications

open access: yesResponsive Materials, EarlyView.
We systematically summarize how each scale dictates fundamental choices in design feature, manufacturing technology, driving mechanism, and control strategy, which are inherently governed by scale‐dominated physical principles. Furthermore, the application of scale‐determined operation modes of microrobots across different stages of medical ...
Hang Yin   +3 more
wiley   +1 more source

Opportunities for 2D‐Material‐Based Multifunctional Devices and Systems in Bioinspired Neural Networks

open access: yesSmall, EarlyView.
Bio‐inspired computing offers a route to highly energy‐efficient artificial intelligence. The unique physical properties of two‐dimensional (2D) materials can further enhance such computing approaches. This perspective highlights recent developments in 2D materials‐based neuromorphic devices and discusses future opportunities for integrating such novel
Jin Feng Leong   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy